Dozens of people are reported to have been killed in Rift Valley region in the past few days. In all at least 750 people have died since the disputed election, and about a quarter of a million have been made homeless.

Hacked to death

The fighting in Naivasha is thought to have broken out late on Saturday, descending quickly into sickening brutality, says the BBC's Adam Mynott in Nairobi.

Reports are unclear but at least nine people are said to have been hacked or clubbed to death as they tried to flee mobs with machetes.